Abstract
Immediate open surgery represents nowadays the only possibility to treat acute aortic Type A dissections, involving the ascending aorta. However, this procedure is correlated with high perioperative mortality rates. Due to the complex vascular anatomy of the ascending aorta and aortic arch, a minimally invasive therapy would only prove feasible by manufacturing custom-designed stent-grafts for each patient according to morphological characteristics obtained from CT data. In order to overcome the inherent difficulties linked to the segmentation of severe aortic dissections, this contribution introduces a novel polar-based segmentation approach implying a piecewise constant curvature model for the outer aortic cross-sectional boundary. Subsequently, the resulting aortic mesh is refined by an efficient narrow-band 3D level-set method.
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Morariu, C., Dohle, D., Terheiden, T., Tsagakis, K., Pauli, J. (2014). Polar-Based Aortic Segmentation in 3D CTA Dissection Data Using a Piecewise Constant Curvature Model. In: Deserno, T., Handels, H., Meinzer, HP., Tolxdorff, T. (eds) Bildverarbeitung für die Medizin 2014. Informatik aktuell. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-54111-7_71
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DOI: https://doi.org/10.1007/978-3-642-54111-7_71
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